[src/trunk]: src/sys/dev/pci Use __aligned(8) with naturally-aligned-yet-__pa...

[jakllsch <jakllsch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/c6de30a4e1b6
branches:  trunk
changeset: 931323:c6de30a4e1b6
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Sun Apr 26 15:39:04 2020 +0000

description:
Use __aligned(8) with naturally-aligned-yet-__packed msk(4) descriptors.

Allows compiler to generate more efficent struct member accesses.

diffstat:

 sys/dev/pci/if_skreg.h |  8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diffs (36 lines):

diff -r 6809c7cec654 -r c6de30a4e1b6 sys/dev/pci/if_skreg.h
--- a/sys/dev/pci/if_skreg.h    Sun Apr 26 14:49:17 2020 +0000
+++ b/sys/dev/pci/if_skreg.h    Sun Apr 26 15:39:04 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: if_skreg.h,v 1.27 2019/11/15 12:38:09 msaitoh Exp $ */
+/* $NetBSD: if_skreg.h,v 1.28 2020/04/26 15:39:04 jakllsch Exp $ */
 
 /*-
  * Copyright (c) 2003 The NetBSD Foundation, Inc.
@@ -1701,7 +1701,7 @@
        u_int16_t               sk_len;
        u_int8_t                sk_ctl;
        u_int8_t                sk_opcode;
-} __packed;
+} __packed __aligned(8);
 
 #define SK_Y2_RXOPC_BUFFER     0x40
 #define SK_Y2_RXOPC_PACKET     0x41
@@ -1712,7 +1712,7 @@
        u_int16_t               sk_len;
        u_int8_t                sk_ctl;
        u_int8_t                sk_opcode;
-} __packed;
+} __packed __aligned(8);
 
 #define SK_Y2_TXCTL_LASTFRAG   0x80
 
@@ -1725,7 +1725,7 @@
        u_int16_t               sk_len;
        u_int8_t                sk_link;
        u_int8_t                sk_opcode;
-} __packed;
+} __packed __aligned(8);
 
 #define SK_Y2_STOPC_RXSTAT     0x60
 #define SK_Y2_STOPC_TXSTAT     0x68